| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
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| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
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| Presentation Title |
Quantifying Damage Evolution during In-situ Loading of Additive Manufactured 316L Stainless Steel Using High Energy X-rays
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| Author(s) |
Aeriel D. Murphy-Leonard, David Rowenhorst |
| On-Site Speaker (Planned) |
Aeriel D. Murphy-Leonard |
| Abstract Scope |
The evolution of damage, texture, and strain in additive manufactured (AM) 316L stainless steel was investigated during in-situ tensile loading using high energy X-rays. Synchrotron X-ray computed tomography (measurements were performed to determine the initial porosity and monitor the evolution of porosity during tensile loading as well as detect the initiation and growth of voids from pre-existing pore defects in the specimens. Far-field X-ray diffraction measurements were performed to quantify crystallographic texture and the distribution of internal elastic strains during loading. As a result of tensile deformation, a strong {111} + {200} double fiber texture develops at high tensile strains and remains until fracture. XCT results confirmed that pores were found to have an asymmetric or irregular morphology. At high tensile strains, the massive accumulation of internal damage at these pores eventually connected to the surface reducing the ductility in these thin-walled AM samples and resulting in final failure. |
| Proceedings Inclusion? |
Planned: |